National Semiconductor LP5951MFX-2.0
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.60 | $0.60 |
| 15+ | $0.14 | $2.10 |
| 25+ | $0.14 | $3.50 |
| 50+ | $0.13 | $6.50 |
| 100+ | $0.11 | $11.00 |
| N+ | $0.02 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 2V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.35V @ 150mA |
| Current - Output | 150mA |
| Current - Quiescent (Iq) | 55 µA |
| Current - Supply (Max) | 70 µA |
| PSRR | 60dB ~ 50dB (100Hz ~ 10kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
The LP5951MFX-2.0 is a 150mA low dropout linear regulator from National Semiconductor. It delivers a fixed 2.0V output with a low dropout voltage of 0.35V at full load. The regulator features a quiescent current of 55 µA, making it suitable for battery-operated equipment. With PSRR of 60dB at 100Hz, it provides stable, clean power. The SOT-23-5 package offers a compact solution for various applications.
- Low Dropout: 0.35V at 150mA allows operation from low input voltages.
- Low Quiescent Current: 55 µA helps extend battery life in portable devices.
- Stable Output: 60dB PSRR at 100Hz reduces supply noise.
- Compact Package: SOT-23-5 is easy to integrate into space-limited PCBs.
Digital Core Power
Provides stable 2.0V supply for low-voltage digital cores in DSPs and FPGAs.
Battery-Powered Instruments
55 µA quiescent current and 0.35V dropout maximize battery life in handheld meters.
Wireless Sensor Networks
Good PSRR (60dB at 100Hz) ensures clean power for sensor nodes in industrial IoT.
Portable Audio Players
Low noise output preserves audio fidelity in portable media devices.
Automotive Infotainment
Reliable 2.0V output for display drivers and interface ICs in car entertainment systems.
Medical Implantables
Low quiescent current and small SOT-23 package suit power-constrained implantable devices.
- Q: What is the output voltage?
- A: The fixed output voltage is 2.0V.
- Q: What is the maximum output current?
- A: It can supply up to 150mA.
- Q: What is the input voltage range?
- A: The input voltage is 2V (typical).
- Q: What is the dropout voltage?
- A: Dropout is 0.35V at 150mA.
- Q: What is the quiescent current?
- A: Quiescent current is 55 µA.
- Q: What package is available?
- A: It comes in SOT-23-5 package.
- Q: What is the output voltage?
- A: The fixed output voltage is 2.0V.
- Q: What is the maximum output current?
- A: It can supply up to 150mA.
- Q: What is the input voltage range?
- A: The input voltage is 2V (typical).
- Q: What is the dropout voltage?
- A: Dropout is 0.35V at 150mA.
- Q: What is the quiescent current?
- A: Quiescent current is 55 µA.
- Q: What package is available?
- A: It comes in SOT-23-5 package.

LP5951MFX-2.0.pdf